Portland police have cited the TriMet shuttle bus driver who struck and injured a bicycle rider during a tangled evening commute on Aug. 12, saying he made an unlawful turn from the center lane.

The driver, 39-year-old John Nations from Beaverton, was assaulted at the scene of the crash and remains on worker’s compensation, TriMet said. He will be "retrained" to refresh his knowledge of making correct turns, said spokeswoman Mary Fetsch.

The driver, Fetsch said, moved into the center lane from the travel lane in order to make a wide turn to clear a MAX train at Pioneer Courthouse Square.

Two weeks ago, police ticketed 36-year-old bicyclist Richard Krebs of Northeast Portland, saying he failed to obey a traffic control device by running a yellow light.

The crash took place on MAX tracks, causing further delays during a hectic Thursday night commute when a man in his 20s jumped to his death from the Vista Bridge and landing on the MAX light-rail tracks below.

The shuttle bus was being used to transport MAX riders between the Sunset Transit Center and the Galleria in downtown when the crash happened.

Nations was “in the travel lane on Sixth for much of the block before moving fully into the center lane so he could make a wide turn around the stopped train and get into the single travel lane on Morrison,” Fetsch said in an e-mail.

Fetsch said Nations was assaulted by a bystander after the crash, but suffered no serious injuries and is expected to return to work.

Update:On Bike Portland, Jonathan Maus notes that, despite TriMet's claims, there is no record of an assault anywhere in the police report.